The FlowBar-8 is a multi-channel mass flow instrument that uses precision needle valves to accurately set flow rates with a resolution of 1 milliliter per minute. The Flowbar is avaliable in a four or eight channel configuration with standard flow ranges of 0-2 or 0-5 liters per minute.  This instrument is ideal for measuring the flow to multiple test chambers (accuracy <2% of reading) or to accurately divide a single input flow into multiple outputs.